WebFlow Length. Flow Length is the horizontal projection length of the greatest surface distance from a point on the surface to the beginning (or end) of the stream along the flow direction. Flow length is a crucial factor for soil conservation; if the flow length is long, the flow volume will be huge and the erosion will be stronger. http://support.supermap.com.cn/DataWarehouse/WebDocHelp/iObjectsNet/html/M_SuperMap_Analyst_TerrainAnalyst_HydrologyAnalyst_FlowLength.htm
利用ArcGIS水文分析工具提取河网(转) - CSDN博客
WebFlowlength is calculated as the average of the runoff pathway lengths from all the cells in a raster-based map of the target site. We evaluated the relationships between the connectivity of runoff sources, measured with Flowlength, and the runoff and sediment yields from six plots and three catchments in semiarid southeast Spain. Flowlength WebUsage. A primary use of the Flow Length tool is to calculate the length of the longest flow path within a given basin. This measure is often used to calculate the time of concentration of a basin. This would be done using the Upstream option.. The tool can also be used to create distance-area diagrams of hypothetical rainfall and runoff events using the weight … great lakes motor company pa
水流长度 (Spatial Analyst)—ArcGIS Pro 文档 - Esri
WebDESCRIPTION. r.flow generates flowlines using a combined raster-vector approach (see Mitasova and Hofierka 1993 and Mitasova et al. 1995) from an input elevation raster map (integer or floating point), and optionally an input aspect raster map and/or an input barrier raster map. There are three possible output raster maps which can be produced ... WebJan 3, 2008 · The output of FlowLength is a floating point raster. Learn more about how to specify the input raster dataset in the Map Algebra expression of Raster Calculator. ArcObjects. The output from the FlowLength method is a floating point raster object. Command line syntax An overview of the Command Line window great lakes motorcoach company